Title:
OPTICAL DISC MEDIUM AND OPTICAL DISC RECORDING METHOD
Document Type and Number:
WIPO Patent Application WO/2011/111243
Kind Code:
A1
Abstract:
The disclosed optical disc recording method uses a so-called "n/2 recording strategy," wherein when it is assumed that n is an integer greater than or equal to 2 and q is the quotient when n is divided by 2, pulse sequences corresponding to marks of length nT are constituted by q units of write power level pulses. In the disclosed optical disc recording method, the starting time and/or the ending time and/or the duration of each pulse in pulse sequences corresponding to marks wherein n is greater than or equal to 4 is/are controlled separately for at least the case in which n is 4, the case in which n is an even number greater than or equal to 6, and the case in which n is an odd number greater than or equal to 5.
Inventors:
KUROKAWA TAKAHIRO (JP)
Application Number:
PCT/JP2010/062224
Publication Date:
September 15, 2011
Filing Date:
July 21, 2010
Export Citation:
Assignee:
HITACHI CONSUMER ELECTRONICS (JP)
KUROKAWA TAKAHIRO (JP)
KUROKAWA TAKAHIRO (JP)
International Classes:
G11B7/0045; G11B7/007; G11B7/125
Domestic Patent References:
| WO2009054196A1 | 2009-04-30 |
Foreign References:
| JP2007048412A | 2007-02-22 | |||
| JP2005092942A | 2005-04-07 |
Attorney, Agent or Firm:
ASAMURA PATENT OFFICE, p. c. (JP)
Patent business corporation Asamura patent firm (JP)
Patent business corporation Asamura patent firm (JP)
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Claims: